JSFiddle - React, Tailwind, and code Playground
by anay1231
HTML
<select id="assignment-type-dd">
<option>test</option>
<option>hellow</option>
</select>
JavaScript
var capitalizeMe = "";
$("#assignment-type-dd option").each(function() {
capitalizeMe = $(this).text();
$(this).text(capitalizeMe.charAt(0).toUpperCase() + capitalizeMe.substring(1));
});